是一个数学题:a+1/a=4（0＜a＜1）,求根号a减根号a分之一x_birdie是一个数学题:a+

什么时候两个谓语可以用and连接共同做谓语.因为有的只用一个动词做谓语,要是再有动词就必须用ing 或 to..例：A:I like to play .I like playing.B:I come and see. and 可连接两个并列谓语吗省略It turn up freedom aint nothing but missing you.这里的aint做什么成分怎么突然出现在这里的? 李斯丹妮唱过的歌 歌词好像是：you love me you hate me you>>>>>I don't care 李斯丹妮唱过的英文歌? 求李斯丹妮唱过的英文歌名 this,is,it,jacket,what's,a(连词成句) 如果英语动词用and连接,时态要一致吗?英语时态问题 如果2个动词用and连接,前后时态应该一致吧比如、 he used sth to did sth he used sth and played with him这2句话有问题吗 with后面的动词用单三形式形式吗?为什么 主语+with+主语,后面的动词是就近原则吗还有,能不能举几个就近原则的列子呢,比如either.or还有，列如老年人oid，等的统称名词，谓语动词be应该用什么呢 I,R,N,E,L,T,A,G八个字母组成一个英文单词. I,R,N,E,L,T,A,G八个字母组成一个英文单词. 其实我很爱你请不要不理我用英文怎么说 i go to home at four thirty找错 we f___ school at about four.then we can go home many students go thereto buy school things every day.Igo home at four thirty.I and 前后的动词怎样用?到底是并列动词还是名词例 she is beautiful and likes to help others. and前后的并列动词用法.Everybody was excited by this new meterial which could be moulded into shapes and ____ so cheap to buy.A be B was答案是was,请问能不能选择be?构成could be.and be.,一个could带上两个并列的be, and连接两个被动语态动词时was是不是用一次就好了例如：he was qualfied to graduate and granted the degree 这里的granted前面用不用在家was 过去完成时与过去进行时的区别是什么?有时候when也用于过去完成时,怎么区分 清华大学怎么样? can't but、can't help but、do nothing but有什么区别? cant help doing等于什么?如题 have nothing to do but do sth还是doing sth cant help/ stand doing意思快区别,不是意思,打错了 and前后的句子的时态是否应保持一致,在什么情况下? and做连词是句子需要前后时态一致吗 cannot help but (to) do to 什么时候要省略什么时候不省略 cannot help doing 和 cannot help but do 的区别哪个是情不自禁? 英语翻译英文的别理我的词组 I cannot help but to do sthI cannot help but do sth哪个正确或者都正确?I cannot help but letting him go.正确否? “不是我不理你”翻译成英语. cannot help oneself 和cannot help but怎么用能不能举几个例子,but后加不加to?